2026 Virginia Half Triathlon

October 11 | Lake ANna, VA

Registration

All race registrations are completed online. We do not accept paper forms, do not offer race day registrations and do not accept payment from other services like PayPal or Venmo. You may register online by clicking here.

All Double ANVIL athletes (solo and team) are required to have our Medical Release Form signed by a licensed doctor. This form must be submitted to our race director via email one month prior to the race start.

Athletes may download the Medical Release Form here.

Register
Medical Form

Race Categories

  • Mammoth Endurance Half Triathlon | VA 70.3 | October 11th

COURSE INFORMATION - Coming Soon

Our courses consist of shorter loops inside a controlled area. The distance of our events require extra safety measures be taken to ensure athletes are cared for and able to receive medical help if needed while on course. These shorter loops allow for your family or crew to be much more involved in your race, resulting in an overall more enjoyable experience for athletes and their support crew.

The courses are inside a state park and are well marked / manned by volunteers during the event. Try it before you bash it - we guarantee you’ll find the shorter loops helpful and more enjoyable during your event.

Ready to test your limits?

Whether you’re chasing your first ultra or your next finish line, Mammoth Endurance is here to carry you through.

Register